Effect of sintering time on Bi1.6Pb0.4Sr1.8Ba0.2Ca2Cu3O10+? compound quenched in air and liquid nitrogen. Baghdad Sci.J [Internet]. 2014 Jun. 1 [cited 2024 Dec. 19];11(2):713-7. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2684